Question

what accounted for the differences in tortoise neck lengths among the islands of the galapagos? the amount of rainfall the island received the number of predators on the island the amount of ground vegetation available on the island

Explanation:

The differences in tortoise neck lengths among the Galapagos islands are related to the amount of ground vegetation available. Tortoises with longer necks could reach higher vegetation when ground vegetation was scarce. This is an example of natural selection.

Answer:

the amount of ground vegetation available on the island